diff --git a/python-boto3.spec b/python-boto3.spec
index 9c937d5..d02c75b 100644
--- a/python-boto3.spec
+++ b/python-boto3.spec
@@ -28,7 +28,8 @@ BuildRequires:  python-mock
 BuildRequires:  python-wheel
 BuildRequires:  python2-botocore
 BuildRequires:  python2-jmespath
-BuildRequireS:  python-futures
+BuildRequires:  python-futures
+BuildRequires:  python2-s3transfer
 %if 0%{?with_python3} 
 BuildRequires:  python3-devel
 BuildRequires:  python3-setuptools
@@ -37,6 +38,7 @@ BuildRequires:  python3-mock
 BuildRequires:  python3-wheel
 BuildRequires:  python3-botocore
 BuildRequires:  python3-jmespath
+BuildRequires:  python3-s3transfer
 %endif # with_python3
 
 %description
@@ -49,6 +51,7 @@ and Amazon EC2.
 Summary:        The AWS SDK for Python
 Requires:       python2-botocore >= 1.4.1
 Requires:       python2-jmespath >= 0.7.1
+Requires:       python2-s3transfer >= 0.1.0
 RequireS:       python-futures >= 2.2.0
 %{?python_provide:%python_provide python2-%{pypi_name}}
 %{?el6:Provides: python-%{pypi_name}}
@@ -64,6 +67,7 @@ and Amazon EC2.
 Summary:        The AWS SDK for Python
 Requires:       python3-botocore >= 1.4.1
 Requires:       python3-jmespath >= 0.7.1
+Requires:       python3-s3transfer >= 0.1.0
 %{?python_provide:%python_provide python3-%{pypi_name}}
 
 %description -n python3-%{pypi_name}